Elenco Snap Circuits® Deluxe Sound & Light Combo - Manual (Page 158)

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Build the circuit and turn on the slide
switch (S1). Adjust the red LED (D1)
flash rate using the 500kW adjustable
resistor (RV3), and adjust the echo level
using the adjustable resistor (RV).
Try replacing the red LED (D1) with the
white LED (D6).
Project 374 Project 375
Photo Pulsing
Light Echoes
Use the preceding circuit, but replace
the 500kW adjustable resistor (RV3)
with the photoresistor (RP). Now the
LED flash rate is controlled by
adjusting the amount of light shining
into the photoresistor.
You need an infrared remote
control for this project, such as
any TV/stereo/DVD remote
control in your home.
Build the circuit and turn on the
switch (S1). Point your remote
control toward the infrared
module (U24) and press any
button to activate sound effects.
Sometimes this circuit may
activate without a remote
control, due to infrared in
sunlight or some room lights. If
this happens, try moving to a
dark room.
You can replace the red LED
(D1) with the white LED (D6).
Sound Effects Project 376 Project 377
Funky Sound
Effects
Use the preceding circuit, but replace
the red LED (D1) with the color LED
(D8). The circuit makes noise when
you turn on the slide switch (S1), and
activating the infrared module (U24)
with your remote control adds
additional effects.
Remote
Pulsing Light
Echoes
SCC-350_Manual_Part_C.qxp 7/25/14 2:11 PM Page 46